Sharpener



FIG. 1 is an upper perspective view of the sharpener showing my design.

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a top plan view;

FIG. 5 is a bottom plan view;

FIG. 6 is a side elevation view thereof; and,

FIG. 7 is an opposite side view thereof.

The device sharpens blades, such as knife blades.

CLAIM The ornamental design for a sharpener, as shown and described.